Dusky



(No Model.) 2 Sheets-Sheet 1.

J. S. COWDERY,` H. J. CURTIS 8; E. L. LIEDKE. GRAYON MACHINE.

No. 476,038. Y Patented May 31, 189.2.

(No Model.) Y 2 Sheets- Sheet 2.

J.-S. GGWDERY, H. J. CURTIS & B. L. LIEDKE. oRAYoN MACHINE.

10.476,038, y Patented May 31, 1892.

UNITED STATES PATENT OFFICE@ JOHN S. COIVDERY, HOVARD J. CURTIS, ANDEDVARD L. LIEDKE, OF SAN- DUSKY, OHIO; SAID CURTIS AND LIEDKE ASSIGNORSTO SAID OOWDERY.

CRAYON-IVIACHINE.

.SPECIFICATION forming part of Letters Patent No. 476,038, dated May 31,1892.

Application filed January 1'7, 1889. Renewed December 1G. 1889. SerialNo. 333,841. (No model.)

To @ZZ whom, it may concern:

Be it known that we, JOHN S. OOWDERY, HOWARD J. CURTrs,and EDWARD L.LIEDKE, citizens of the United States, and residents of Sandusky, countyof Erie, and State of Ohio,

have invented certain new and useful Improvements in Crayon-Machines, ofwhich the following is a specification, the principle of the inventionbeing herein explained and the ro best mode in which we havecontemplated applying that principle, so as to distinguish it from otherinventions.

The leading features of thisinvention comprise mechanism which operatesthe moldplates in an upward and downward movement, said mold-plateshaving downwardlydischarging mold formation, the arrest of such downwardmovement adapted to cause the loosening or discharge of the crayons and2o spring mechanism which causes the said moldplates to descend in theirsaid downward movement with speed and force over their gravity tendency,so as to insure certainty in 'the loosening or discharge of the crayons.

2 5 Referring to the drawings, Figure l is a plan view of the upper sideof the mold-plate frame complete, the molds ou account of thegreatlyreduced scale of the drawings and for the sake of greaterperspicuity and clearness being go shown as alternating one with theother, though in practice we preferably make them exactly opposite oneanot-her on each side of the plates, thus forniinga perfectline of spacebetween the rows of holes each Way, as shown in the sectionalmold-plates, Figs. 4 and 6. Fig. 2 is a plan View of the reverse side ofthe mold-plate frame complete. Fig. 3 is a transverse sectional Viewthrough the barrel, showing a portion of the mold-plate in lowered po-4o sition. Fig. 4 is an inside face elevation of a barrel, the endportions of the frame being also shown, certain portions being sectionedaway and certain sectional portions of the mold-plates being shown inposition within the barrel, the shaft below the sectional moldplates andthe cams engaging with the same being omitted for the sake of clearness.Fig. 5 isan inner end elevation of the back end portion of the frame,showing the eccentric 5o-shaft journaled therein and the brasses securedto the shaft. Fig. 6 is an elevation of a portion of a barrel, all partsengaging with the mold-plates shown therein or that would obscure theView of the said mold-plates being sectioned away or omitted, the camsadjacent to said shown mold-plates and the shaft on which they aresecured being omitted, among other things. Fig. 7 is a view of the sameparts shown in Fig. 3, the mold-plate being in raised position. 6o

The mold-plate frame is composed of the end portions A A and therecessed side portions or barrels A2, to which said end portions aresecured. Journaled longitudinally in the ends of each barrel is theshaft B. Secured to the outer extremity of each shaft are thebevel-gears h, that respectively mesh with bevel-pinions h, secured toshaft C, said latter shaft being journaled transversely of themold-plate frame on the outer side of the end 7o portion A.Ratchet-lever D is removably fitted on the extremity of shaft C, and bythis means said shaft is rotated and motion thereby imparted tobevel-gears b and the shafts to which they are respectively secured.

Within the recess c of the respective barrels and rigidly secured toeach shaft B are the rows of cams @,with their projecting portions elocated on a pitch or spirally along the shaft. The said cams on eachshaft are So divided into two series, the respective cams of the twoseries being located intermediately of one another, every cam having itsprojecting portion substantially on the diametricallyopposite side ofthe shaft to therprojecting portion of the adjacent cam--that is, everyother cam has its projecting portion on one side of the shaft and theintermediate cams have their projecting portions on the opposite side ofthe shaft. In other words, the project- 9o ing portion of one cam is Vinevery instance in proximity to the retreated or depressed portion of theadjacent cam, taken on a plane transversely through the different cams.The projecting portion of any cam on one shaft is located in the samevertical plane and also in the same horizontal plane with the projectingportion of the corresponding or companion cam on the shaft in theopposite barrel. Thus as the two shafts are operated by roo the samemechanism they are caused to rotate synchronously one with the other,and the companion cams respectively on said shafts likewise rotatesynchronously. Each barrel has formed longitudinally on its inner sidethe ledge or shoulder f, on which rest the.

respective extremities of mold-plates F when the latter are in loweredposition.

Bolted to each extremity of the closed edge of each -mold-plate is thespring f', having its free extremity engaging with the wall of thelongitudinal slotfz, formed on the inner side;

The respective shoulders f3 of Cast integral with follower l-I,described bclow, is apron H', said apron covering and protecting theeccentric shaft and brasses, de`` scribed at length below, and alsoprotecting,`

the connectingparts.

Said apron normally;

rests on a level with the upper edge of the mold-plates, thus forming aperfect surface for conducting away any surplus material from the moldsafter filling and also protecting the working parts of the follower fromexposure.

The springs are straightened and,`

compressed as the cams raise any one moldplate, and as the latter dropsoff the projections of the cams the weight of the mold-plate, 'i

together with the pressure of Ythe springf causes the mold-plate to beforced down` wardly until it strikes the ledges or shoulders f f, whichsuddenly arrest the downward descent of the mold-plate and insure thedis-f charge of the crayons from the molds.

An eccentric shaft Gis journaled in the end portion A of the frame andis provided on its extremity with lever G.

Brasses 7i are severally secured to said shaft, and bolted to saidbrasses is the movable follower II, that extends lengthwise of the endportion A. Said follower is provided with slotted opening h', thatpermit certain freedom of movement t0 bolts h2, which secure thefollower to the respective brasses. As the lever is moved the eccentricshaft transmits movement to the respective brasses, and thence to thefollower, the latter being thus forced against the adjacent mold-plateor retracted therefrom.

Suitable gudgeons J are cast integral with the respective end portions AA', by means of which the frame may be journaled, so as to be rotatedand turned as the operation of the machine may require.

Each mold-plate is provided with fractional molds that register withsimilar fractional molds in the adjacent mold-plate and together formcomplete molds.

The operation of the machine is as follows: Let it first be understoodthat the mold-plate frame is journaled up in any suitable reel. Theeccentric shaft G is by means of the lever G partially rotated, so as tocause the brasses to force the follower against the last,

and adjacent mold.

other. The molds are then suitably filled with the liquid material ofwhich the crayons are to be formed, and said material is allowed to setin the molds, so as to form the hardened crayons. Vhen it is desired toremove the crayons, the mold-plate frame is given a semi1'otation,bringing the springs on the upper side, as shown in Fig. 2. The followeris retracted by movements reverse to that described, and the mold-platesare thus afforded certain play of movement sufficient to relieve thefriction of one against another. By means of the ratchet-lever D thetransverse shaft C and the longitudinal shafts B and the cams secu redthereto are rotated, causing the moldplates to be raised by theirengagement with said cams. As the cams are arranged spirally or with apitch along the.l shaft and every other cam has its projectingportion onopposite sides of theshaft from the alternate cam, every othermold-plate, or we may call them the alternate mold plates, is graduallyraised one after another by said cams, and as the incid-plates drop offthe projections of the cams their descent is hastened by the force ofthe springs exerted downward in opposition to the cams and inconjunction with the weight of the mold-plates. As the mold-platesdescend they strike with force against the ledges f and the crayons areforced out. On the succeeding half-rotation of the shaft the operationis repeated with the remaining moldplates that are intermediate ottheset first raised.

The foregoing description and accompanying drawings set forth in detailmechanism in embodiment of our invention. Change may be made therein,provided the principles of construction respectively recited in the.following claims are employed.

Ve therefore particularly point out and' distinctly claim as ourinventionl. 'In a machine for making crayonscar penters chalk, or otherlike articles, the combination of an upwardly and downwardly movablemold-plate having downwardlydischarging mold formation with anactuatingcam, said cam engaging with said moldplate and thus raising itand then disengaging it self therefrom, substantially as set forth.

2. In a'machine for making crayons, carpenters chalk, or other likearticles, the combination of an upwardly and downwardly movablemold-plate having downwardly-discharging mold formation with anactuatingcam, said cam located out of vertical line with said moldformation and having alternate engagement with and disengagementfrom:said mold-plate, substantially as set forth.

3. In a machine for making crayons, car penters chalk, or other likearticles, the combination of a mold-plate whose mold formationsdischarge downwardly and two rotary cams respectively engaging with theunder sides of the opposite ends of said mold-plate, substantially asset forth.

4. In a machine for making crayons, carpenters chalk, or other likearticles, the com- IOO IIO

IZO

bination of an upwardly and downwardly movable mold-plate whose moldformations discharge downwardly, movable cam mechanism engaging beneathsaid mold-plate, and a spring which presses down upon said moldplate,substantially as ,set forth.

5. In a machine for making crayons, carpenters chalk, or other likearticles, the combination, with mold-plates relatively independent andrespectively provided with fractional molds conjointly forming completemolds having downwarddischarge, of rotary cams relativelyindependent andrespectively engaging beneath the en ds of said mold-plates, said camshaving springs relatively independent and respectively exerting downwardpressure on the ends ot' said mold-plates, substantially as set forth.

6. In a machine for the manufacture of crayons, carpenters chalk, orother like articles, the combination, with a numberof cams, .theprojecting portion of one cam alternating with the depressed portion ofthe next cam, of a number of mold-plates respectively havingengagementwith said cams,sub stantially as set forth.

7. In a machine for the manufacture of crayons, carpenters chalk, orother like articles, the combination of a series of moldplates and tworows of cams respectively engaging with opposite extremities of themoldplates, the projecting portions of the cams of each row beinglocated ont of horizontal line with each other, substantially as setforth.

S. In a machine for the manufacture of crayons, carpenters chalk, orother like arti-- cles, the combination lof a series of mold-plates, amold-plate frame, and two series of cams located at the same side ot theframe, the cams of each series engaging, respectively, with theextremities of the mold-plates and having .their projecting anddepressed portions respectively alternating with each other, thealternate projecting portions of each series of cams being on an axialpitch with respect to each other, substantially as set forth.

9. In a machine for the manufacture of crayons, carpenters chalk, orother like articles, the combination of a mold-plate frame provided onits opposite sides with shoulders, a series of mold-plates having theiropposite extremities engaging with said shoulders, and two rows ofrotary cams respectively engaging with opposite extremities of saidmoldplates, the projecting portions of alternate cams of each rowbeinglocated spirally on a pitch with respect to each other, theprojecting portions of companion cams of the two rows being locatedsubstantially in the same horizontal plane, substantially as set forth.l0. In a-machine for the manufacture of crayons, carpenters chalk, orother like articles, the combination of a series of mold-plates, amold-plate frame provided with opposite recessed side portions, rotaryshafts extending longitudinally in said side portions, said'shaf tsprovided with cams engaging with the opposite extremities of therespective mold-plates, and mechanism intermediately connecting saidshafts, whereby they are caused to rotate synchronously, substantiallyas set forth.

11. In a machine for making crayons, carpenters chalk, or other likearticles, the combination of a series of mold-plates having endshoulders, a mold-plate frame having its sides provided with recesses inwhich said shoulders loosely t, and cam mechanism located within saidrecesses, said shoulders resting on said cam lmechanism and havingreciprocating movement up and down within said recesses, substantiallyas set forth.

12. In a machine for making crayons, carpenters chalk, or other likearticles, the combination'of mold-plates, a mold-plate follower,fo1loweractuating mechanism, and an apron connected with said followerandextending over said follower-actuating mechanism, substantially asset forth.

In testimony that we claim the foregoing to be our invention we havehereunto set our hands this 12th dayof January, A. D. 1889.

. JCI-IN S. COWDERY.

HOWARD J. CURTIS. EDWARD L. LIEDKE.

Witnesses to the signatures of John S. Cowdery and Howard J. Curtis:

CHARLES W. SADLER, FRANCIS RAYMOND.

Witnesses to the Vsignature of Edward L. Liedke:

CHARLES W. SADLER, GEO. W. DANIEL, Jr.

